Even with a new law that has boosted kindergarten vaccination rates to record highs, hundreds of schools across California still have so many children lacking full immunization that they pose an increased risk of disease outbreaks, according to a Times...

Supporters of an effort to repeal California's new law requiring mandatory vaccines for schoolchildren faced a Monday deadline to turn in enough signatures to qualify a ballot initiative asking voters to repeal the law. The group had until the end of...

Three days after Gov. Jerry Brown signed one of the nation's strictest mandatory vaccination bills, several hundred opponents rallied in Santa Monica on Friday and vowed to repeal it.
"I am not going to stop until the truth comes out — this is heinous,...

California lawmakers on Monday sent the governor a contentious bill that would impose one of the strictest school vaccination laws in the country in reaction to a recent measles outbreak at Disneyland.
The Senate reaffirmed the bill striking California's...

California lawmakers on Thursday approved one of the toughest mandatory vaccination requirements in the nation, moving to end exemptions from state immunization laws based on religious or other personal beliefs.The measure, among the most controversial...

A bill that would require more California children to be vaccinated before they enter school passed a key Senate committee Wednesday as more than 100 parents protested that it would deprive many young people of a public education.The measure cleared the...

California officials on Friday declared the end of the Disneyland measles outbreak, but the political battle over immunization that it sparked continues to rage on.In announcing that the health scare had passed, state medical authorities warned that...

California lawmakers proposed legislation Wednesday that would require parents to vaccinate all school children unless a child's health is in danger, joining only two other states with such stringent restrictions.Parents could no longer cite personal...